From WMS Help

Used to maintain the Compatibility Codes. These codes restrict the stock to certain locations depending upon what the compatibility code is used when setting up the locations and products. If the compatibility is set for a product, then the only locations it can be placed in is the locations with the same compatibility.

Creating New Compatibility Code

Updating Compatibility Code
  1. Press the F8 key to execute the query.
  2. Press the PageUp/PageDown keys to view the results.
  3. Press the F10 key to insert a new record
  4. Press the Ctrl A keys to save your changes or press the [Exit] button to exit the form.
  5. Press the Ctrl F10 keys if you wish to delete any record.