Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
- Triple validation: technical, pedagogical, sectoral.
- Minimum rating 4.8/5 over the last 12 sessions.
Learning objectives
- Master the advanced syntax of the M language for professional transformations
- Develop custom Power Query functions for enterprise use
- Optimize the performance of complex and large-scale ETL queries
- Implement conditional and iterative processing with M Language
- Design certified and reusable data pipelines
- Debug and maintain M scripts for efficient upkeep
- Integrate Power Query M into professional BI workflows
The Learni story
Founded by passionate learning and innovation experts, Learni's mission is to make professional training accessible to everyone, anywhere in the world. Our team operates in major hubs — London, New York, Boston — and internationally, to support talents and organizations in upskilling.
Don't let this gap widen
Why this program matters
Without this upskilling, your team accumulates a technological gap that translates directly into productivity loss.
Organizations that don't train their talents on key topics see their competitiveness drop.
Every quarter without training is a gap widening with competitors who invest.
The cost of inaction quickly exceeds that of well-targeted training.
Program
Module 1Power Query M Language Syntax: Advanced Expressions and Structures (let, variables, types)
Dive into the essential grammar of the M language with practical exercises on real enterprise datasets, create let expressions to encapsulate complex logic, manipulate custom data types like records and lists, resolve common errors via the advanced editor, produce reusable scripts tested on real-world customer data cleaning cases, immediate productivity gains for your daily reports.
Module 2Power Query M Language Transformations: Native and Custom Functions (Table, List, Text)
Explore powerful functions like Table.SelectRows and List.Transform for dynamic filters and sophisticated aggregations, develop user-defined functions to automate multi-source joins, apply to large data volumes from CRM and ERP, guided exercises to pivot and denormalize tables effectively, create deliverables ready for Power BI, transform manual processes into scalable and reliable automations.
Module 3Power Query M Language Performance: Optimization and Iterations (Buffer, recursion)
Learn to buffer tables to speed up repetitive queries, implement recursive loops for nested hierarchies like company organigrams, performance profiling with Query Diagnostics, refactoring slow scripts into optimized versions, practical cases on million-row datasets, produce before/after benchmarks, master techniques to reduce load times by 70% and boost BI dashboard efficiency.
Module 4Power Query M Language Integration: Debugging and Deployment (parameters, errors)
Integrate dynamic parameters for adaptive queries across multiple environments, advanced error handling techniques with try/otherwise, deployment to production via Power BI Service or shared Excel, full audit of a red-thread project with trainer code review, export reusable modules, simulation of critical enterprise scenarios, finalization of a ready-to-use certified ETL pipeline for immediate skill enhancement.
Evaluation method
- Technical MCQ on the M language at the end of the training
- Evaluation through practical exercises and script optimization
- Defense of the red-thread ETL project with performance optimization
Learning method
- Sessions led by a certified active Power BI expert
- Hands-on exercises on authentic enterprise datasets
- Evolving red-thread project over 4 days with continuous feedback
- Detailed course materials and M code examples provided
Methods, materials and delivery
The Training Power Query M Language - Automating Advanced ETLs program is delivered onsite or remote (blended-learning, e-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.
The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.
Equipment required
For the smooth delivery of the Training Power Query M Language - Automating Advanced ETLs program, the following equipment is required:
- Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
- Training environments installed on workstations or accessible online
- Course materials, hands-on exercises and complementary resources
- Post-training access to materials and educational resources
For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.
* contact us for remote delivery feasibility** ratio varies depending on the program
Skills assessment methods
Assessment of skills acquired during the Training Power Query M Language - Automating Advanced ETLs program is performed through:
- During training: case studies, hands-on labs and professional scenarios
- End of training: self-assessment questionnaire and skills evaluation by the trainer
- After training: completion certificate detailing acquired skills
Program accessibility
Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.
Enrollment terms and lead times
Learni programs are available inter-company and intra-company, onsite or remote. Enrollments are possible up to 48 business hours before the program starts. Our programs are eligible for corporate funding paths. Contact us to discuss your training project and funding options.
Verified reviews
What our learners
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
Our method
Training quality, guaranteed at every step
Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.
You meet the trainer beforehand
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
- Live briefing on goals and team context.
- Veto right — we swap the trainer for free if needed.
Content tailored to your context
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
- Hands-on cases drawn from your stack and projects.
- Program co-written then validated by your team.
Continuous quality follow-up
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
- NPS, knowledge quizzes and skills self-assessment.
- Satisfaction guarantee: fully satisfied or free rework.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.
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