Sequential order number on pdf formidable forms

Hi,
I would need a sequential number to be added in 2 e2pdf-templates.
I am using formidable forms and once a customer purchases something several templates are triggered to send pdfs. For each purchase a sequential number should be added to 2 templates (same number).
Can you help please?
many thanks!

Hi,

You can use [id] of entry inside E2Pdf Template or you can create a "Hidden" field inside Formidable Forms form with default value as: [auto_id start=1]: https://formidableforms.com/knowledgebase/using-dynamic-default-values-in-fields/#kb-automatically-increment-an-id

We remain at your service.

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We would really appreciate your feedback at WordPress.org!

Hi,
yes, I was working with that. problem is, whenever a purchase is not finished or cancelled this unique number is deleted or blocked. My customer requires these sequential numbers not to be skipped.
I am looking therefore for something similar you posted some time ago...topic was "Sequential order number divi form for pdf" (29 November, 2020 16:04:59). I would need something similar...
Thanks!

If the [auto_id start=1] doesn't fit your needs, then you need to use Formidable Forms PHP hooks to create/modify hidden field value on submission, for example: https://formidableforms.com/knowledgebase/frm_validate_field_entry/#kb-change-the-value-in-a-field.

Unfortunately, we do not have a PHP snippet, however, you will need to get the latest entry hidden saved incremental value and set it +1 at the moment of submission.

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We would really appreciate your feedback at WordPress.org!

Many thanks for hinting to a potential solution...