Security rule string does not allow to enter additional condition beyond certain limit 2048 characters.
In QMC, Go to Start -> Security rules, when keep adding security rule conditions from Basic section. Corresponding condition string is getting generated in Advanced Condition section. Once number of conditions grow become 2048 characters long then error message is displayed:
"The value is too long Maximum number of characters 2048"
However character length related error message does not get displayed when user writes security rules directly to Advanced conditions section. It neither shows error message nor allows user to append any new condition. Once it reaches 2048 character limit, cursor would not move and also don’t display error message as shown in earlier case.
This is an expected behavior in current design, an improvement has been logged with R&D for this QMC Rules Wizard