Unable to handle optional guest email in MEWS

I’ll check, but basically it’s only this:

1. I set the placeholder like shown in the screenshot above
2. The client leaves the field blank
3. the Zap stops cause it can’t pull a value

I can’t see an option to tell the zap to just move on if there’s no value

Thanks for your help!

I’m already working with paths and I’m on my step limit, so I’m trying to keep it simple as there would be extra steps for up to 5 guest profiles if I can’t manage to set this up within the existing steps.

There are 4 fields with values:
First name (mandatory)
Last Name (mandatory)
Birthdate (mandatory)
E-mail (optional)
 

Alright, let’s see:

In this part I’m fetching the needed data from MEWS, then split the tasks in separate paths

Paths 2, 3 and 4 are working great. Path 1 is working great too (as long as I don't touch the “E-mail” field).
Here is path 1 (from 11. on steps are repeating if more guests are added to the webform)

In step 7. (and the equal repeating steps) I’m creating a customer in MEWS. Therefor I add the following mandatory fields 

- First name
- Last name
- birth date

So far all is good

In the last field on the screenshot (email) I can add the placeholder from the webform to add this to the customer profile in MEWS. this works fine, as long as the client adds this information. This is not mandatory! If it’s not provided, the ZAP stops cause it’s missing the value for e-mail.

The question is: Is there a way to add the mail only if provided within this steps. (Step limit)