Challenges moving Oracle Fusion data into a data warehouse for reporting?

BI_is_Fun 

Beyond the issues already mentioned in your post (reporting gaps, slow queries, API limits, schema changes, etc.), here are additional real-world challenges teams face when extracting Oracle Fusion data into a data warehouse:

• Limited Joinability Across Subject Areas - OTBI and BIP subject areas are siloed
• Inconsistent Business Definitions - Same KPI or field name may mean different things in different subject areas
• Frequent Logic Changes in Upstream Systems- Fusion configurations or setups may change
• Access & Security Model Limitations -  OTBI/BIP reports reflect user security roles — which can limit access to full datasets during extraction
• Lack of True CDC (Change Data Capture)
• Version Skew Between Environments

What can be done different

• Build schema drift detection into the pipeline early on
• REST APIs or BI Cloud Connector (BICC) wherever possible, and only use OTBI for ad hoc needs or pre-built summaries.
• Design robust watermarking strategies (composite keys, last run logic)

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