Missing phone number even if it's required

[asappia]

I've checked and I'm sure that some of the customers without an order just subscribed to the shop, without placing an order.

So, it's SURE not a paypal express checkout issue.

But I'm unable to rebuild the case.

Tried with no javascript, tried with many browsers, but I'm not able to reproduce this bug. and it's likely to be a bug in zen-cart.

Now I'm trying with trimming the field before checking the length (even if following the code flow it seems to me that the field is already trimmed)

is there any zen-cart debug tool (to watch and log live script flow) and logging to a file if some condition are met ?

[yellow1912]

Go to admin->configuration->minimum values

See if the phone requirement is set to 0

[asappia]

telephone min length is 6 and not 0.

[DrByte]

I've checked and I'm sure that some of the customers without an order just subscribed to the shop, without placing an order.

So, it's SURE not a paypal express checkout issue.

Please explain how that makes it "SURE not a paypal express checkout issue."

Just because they didn't complete a purchase doesn't mean their account details weren't created by "starting" a PayPal Express Checkout transaction.

Perhaps they started the process but aborted because your shipping rates are too high, or they wanted to wait until later to make their purchase, or maybe they realized they didn't have enough funds in their account, or any other reason. Their account would still be left in your site.