Modify Work Order Numbering Sequence
Whenever a new Work Order is created, its number is automatically assigned based on a numerical sequence. For example, if the sequence starts at 1000, the next Work Order will be numbered 1001.
Maintenance Pro also allows the Work Order sequence to be adjusted if a higher starting value is needed.
To edit the Work Order sequence, select the gear icon and choose Organization Profile. Then, click the WO/PO Sequences tab and set the Work Order Sequence to the desired value.

Click Save on the bottom to save the setting.