Diagnose first. Rewrite second.
A DAX debugger that tells you whether the issue is your code, your model, your filter context, or your data — before it touches your measure. With a sandbox link anyone on Reddit can actually reproduce.
You can’t share what’s actually broken.
Posting on r/PowerBI, Stack Overflow, or the Fabric Community? The first reply is always “can you share your data model?” You can’t — it has real numbers. So you screenshot. So you paraphrase. So the answer comes back generic, and you’re still stuck.
Generic AI — Copilot, ChatGPT, Claude — will happily rewrite your measure. They have no way to know your relationship is bidirectional. They’ll keep producing more wrong DAX until you give up.
- “Can you share your data model?”
- “Hard to tell without seeing the relationship.”
- “Try CALCULATE…” (no it didn’t work, the model is the problem)
- Three days later, no answer.
Drop a .pbit. Get a sandbox in 90 seconds.
Power BI templates carry your schema and zero rows of data. We parse it, generate synthetic data that respects every relationship and key, and stand up a real Power BI dataset Daxie can query.
- Schema only — no real data ever leaves your machine
- Synthetic data respects cardinality, keys, relationships
- Backed by a real Power BI workspace, not a simulator
Daxie names the failure mode before she touches your measure.
Six root-cause chips, one per response. We refuse to rewrite your DAX until we know why it’s broken.
- MODEL ISSUE — cardinality, missing relationship, inactive path
- CONTEXT ISSUE — CALCULATE override, KEEPFILTERS, ALL semantics
- SYNTAX ISSUE — parser-level error, circular dependency, type mismatch
- LOGIC ISSUE — runs but produces the wrong number
- DATA ISSUE — nulls, duplicates, locale parsing
- DAX OK — your code is fine, the surprise is elsewhere
USERELATIONSHIP isn’t activating because the active path on 'Sales'[OrderDate] → 'Date'[Date] is still in use. The measure is correct; the relationship needs to be inactive for that join.A link that anyone can open. Real data never in it.
One click and your debug session becomes a sandbox URL. Paste it in Reddit, Stack Overflow, or your team Slack. Anyone with the link can open it, see the schema, see the failing measure, see Daxie’s diagnosis — and fork it into their own workspace to keep iterating.
- Synthetic schema, synthetic data — we enforce it at the API level
- Indexable by Google — your problem becomes a permanent reference
- Forkable — the helper can pick up where you left off
- Revocable — pull the link the moment you’re done
Because those tools rewrite your DAX. We diagnose it.
Copilot reads your model. So does the Power BI MCP server. Both will keep producing measures until you accept one. Neither will tell you the answer is “your relationship is bidirectional” — because they don’t reason about model issues, only DAX issues.
Common questions.
My real data stays private, right?
.pbit files carry schema only, never rows. We refuse to publicly share a debug session built on a .pbix upload (model, view, and API layer all check). The synthetic data we generate respects your relationships but contains nothing of your actual numbers.Does Daxie ever just rewrite the measure for me?
What about my existing .pbix files?
.pbix-based session publicly shareable. Re-upload as a .pbit if you want a shareable session.Why “diagnose first” instead of just answering?
Got a measure that’s broken right now?
Drop the .pbit. Daxie names the failure mode in 90 seconds. The URL goes in your Slack.