Docs: document 500-expense per-report limit when moving expenses

Co-authored-by: ahmedGaber93 <ahmedGaber93@users.noreply.github.com>

Author: MelvinBot

docs/articles/new-expensify/reports-and-expenses/Managing-Expenses-in-a-Report.md

@@ -56,6 +56,8 @@ You can move expenses to a different report, create a new report, or remove them
 3. Choose the green **selected** button > **Move expense(s)**.
 4. Choose a destination report, select **Create report** to create a new report, or select **Remove from report**.
 
+**Note:** Reports are limited to 500 expenses. If you choose a destination report that already has 500 expenses, the move is blocked and a message appears: *Reports are limited to 500 expenses. Please move some to another report.* Move some expenses out of that report or pick a different destination.
+
 **Note:** Workspace Admins can also create reports on behalf of employees by moving expenses to a new report. This is particularly useful for processing company card expenses or splitting expenses across different accounting periods. See [Create and Submit Reports](https://help.expensify.com/articles/new-expensify/reports-and-expenses/Create-and-Submit-Reports) for more details.
 
 ---
@@ -155,5 +157,6 @@ You may be filtered into a different workspace or be using a mismatched search t
 
   - You don’t have permission to edit the report.
   - The report is approved or paid.
+  - The destination report already has 500 expenses (the per-report limit).
 
-**Solution**: Ask a Workspace Admin to unapprove the report, or retract it if you submitted it.
+**Solution**: Ask a Workspace Admin to unapprove the report, or retract it if you submitted it. If the destination report is at the 500-expense limit, move some expenses out of it or choose a different destination report.