BC Friday Tips #27 Replace Blank Values using Transformation Rules
Transformation Rules can replace blank values in Business Central using regular expressions. Set the transformation type to "Replace" and use the pattern ^$ to match empty strings without requiring any development.
Read it hereOpen in Claudehttps-thatnavguy-com-blog-2025-bc-friday-tips-27-replace-blank-values-using-transformation-rules--bc0a2627b6.md

post That NAV Guy
"Set Transformation Type to Replace by using Regular Expressions"
Key points
- Use regular expressions with Transformation Rules to identify and replace empty values
- The pattern ^$ matches start and end of string to identify blank entries
- No custom development is needed; this works out of the box
Quotes
- “Set Transformation Type to Replace by using Regular Expressions” (This is the first step to configure blank value replacement in Business Central)
- “Together, ^$ identifies an empty string” (Understanding this regex pattern is key to implementing the blank value replacement)
- “Work out of the box. No development needed.” (Shows this feature requires no AL code or custom development, making it accessible to all users)
Context
- Features: Transformation Rules, Regular Expressions
Source: That NAV Guy, community blog. Summary, key points and quotes are derived (CONTENT-NOTICE.md); read the original for the full text.