💡 What is Delegation?
Delegation in PowerApps refers to the process of offloading data-related tasks—such as filtering, sorting, and calculations—to the data source instead of handling them within the app. This approach enhances performance, particularly when dealing with extensive datasets.
💡 Delegable Data Sources:
These are sources that support delegation, allowing PowerApps to perform operations like filtering, sorting, and searching directly at the data source level, improving efficiency and handling large datasets effectively.
1️⃣ SharePoint
2️⃣ SQL Server
3️⃣ Dataverse
4️⃣ Salesforce
👉 Learn more about Delegation: Link
💡 Non-Delegable Data Sources:
Some data sources do not support delegation, meaning PowerApps can only retrieve a limited number of records (default: 500 rows, configurable up to 2000).
🛠Examples: Excel, CSV files, etc.
🔹 Delegable Functions:
To process large datasets efficiently, always use functions that support delegation, ensuring PowerApps offloads operations to the data source instead of processing them locally.
🛠Examples: Filter(), Sort(), etc.
🔹 Best Practices for Optimizing Delegation:
1️⃣ Manage Data Row Limits:
By default, PowerApps retrieves only the first 500 records (adjustable to 2000). If delegation is not used, larger datasets may not be fully processed. Choosing delegable functions and data sources helps overcome this limitation.
2️⃣ Prefer Delegable Data Sources:
For optimal performance, use sources that support delegation, such as SQL Server or Dataverse, to handle extensive data loads efficiently.
3️⃣ Use Delegable Functions:
Leverage functions like Filter(), Sort(), and Search() to ensure that queries are executed at the data source level, improving speed and scalability.
4️⃣ Minimize Non-Delegable Queries:
Avoid using non-delegable functions or sources whenever possible. If required, consider workarounds like using collections for local data processing.
5️⃣ Utilize Collections Wisely:
Collections enable local data storage within the app, bypassing delegation limits. If working with a non-delegable source, load the data into a collection for local manipulation without performance constraints.
