[A] If you are facing this issue then please check if the is created in foreign currency or not.
[B] Invoice must be of foreign currency and as you know we can not flow foreign currency invoices in tally.
[C] Solution to this we can create an INR invoice from a foreign currency invoice, in order to do that please open that invoice and click on other action.
[D] Now click on the prepare INR invoice, a new page will open enter currency rate and check the all other field and click on save and send.
[E] By saving this invoice you have created INR invoice, which will be reflected in your tally integration module.
Keywords - export invoice not showing in tally module