Possible for child table to utilize auto-numbering of parent table instead?

[Bob Loblaw]

Hi - I am fairly new to ServiceNow, so bear with me....

I have created Table A which extends Table B. I have deselected the auto-number option on Table A in hopes of using Table B's auto-numbering system for records created in Table A.

Since Table A extends Table B, it would make sense to me that Table A can also use Table B's auto-numbering system as well. But I've been wrong before...

I've read over Auto Numbering for extensible table article but wasn't sure that had the answer I was looking for.

Is this possible and if so, how? Any tips would be appreciated - thanks!

[Chuck Tomasi]

Yes, it is very possible for an extended table to use the numbering of a parent table. I just tried it out and it works fine.

Parent table gets TST0000001

Created a child table: TST0000002

and so on.

[Bob Loblaw]

Hi Chuck and thank you - how is that done though? What do I have to set-up for Table A to use Table B's numbering? From what I tried, just shutting off the auto-numbering of Table A was not enough...

[Chuck Tomasi]

Turn on auto numbering on the parent (table B in your case, if I read this right.)

Turn off auto numbering for the child (table A in your case.)

Go to System Definition> Number Maintenance and ensure there is no record for table A to count. If there is, remove it.

[Chuck Tomasi]

Let me know how that goes.