Add a Sequential Suffix Number

I don't know how to write code.
I figured out how to rename files with "date taken" exif.
Many files renamed have errors associated with same output file name.
I want to add a sequential suffix number but only for each file that will contain the same output name.
Again, preference is only for duplicate names and not for non duplicates

i.e. pattern output may look something like below upon renaming.

20210913_202606.jpg
20210913_202657.jpg
20210913_202657 1.jpg
20210913_202657 2.jpg
20210913_202713.jpg
20210913_202713 1.jpg
20210913_202719.jpg
20210913_202723.jpg

Reply to #1:
Hi,
have you tried changing the name collision rule? I think the rule that adds a number is what you are looking for.

https://i.postimg.cc/TPGH6LFC/img245.png

Otherwise, set the "Append pattern" rule with the following pattern: <Inc Nr> and a space as a separator.

https://i.postimg.cc/pVzvR86t/img246.png

Reply to #2:
Thank you for the response with collusion rules.

It was as simple as selecting "Append number" and inputting a space at "Separator".

(I'd prefer to not have any suffix zeros since there shouldn't be many duplicates if there is a simple answer to do so. None-the-less this will definitely suffice.)

Great little app! Have to make some time to explore its capabilities more...

Reply to #3:

Hi CJ,

Instead of using "Append number" as the collision rule, use "Append pattern", a space for the Separator, and "<IncNr> as the Pattern, like Styb showed I think in his second example. But first, go to "Settings / Renaming" and make sure "Use zero padding in Inc Nr tags" is unchecked.

That should give you what you are looking for, my friend.

Best,
DF

Reply to #4:

DF, you have been super helpful getting me off the ground.

For some reason when I append pattern and use separator <IncNr>, it carries into the new file name with the collusions. This is creating an unsupported filename condition from the <&> symbols.
Do you know why? This rule worked previously.

Thanks!

Reply to #5:

Hi CJ,

Glad to do what I can to help.

I'm not sure I understand what you are describing, but the collision rule should be:

Separator: [just one space, nothing else]
PATTERN: <IncNr>

Hope that helps...

DF