Hi Andy-Roberts，
Do you want to send an Email to the Item you’ve selected and use its” Vendor-Name” as the Email’s subject?
Could you tell me what data type of your "Vendor-Name"?
I’ve made a similar test as follows(I use "the subject column" as a choice type）：
Screen1: create a Display form and a Button( named button1)
Screen2: create a Text input control( named TextInput2) and a Button( named button2)
Set the button1’s OnSelect: Navigate( Screen2,None)
Set the Text input’s default:
"I have Noticed some information on the Database that needs to be investigated"
Set the button2’s OnSelect:
'Office365'.SendEmail(DataCardValue43,DataCardValue42.Selected.Value,TextInput2.Text)
In my test, the Email column’s value is DataCardValue43, the subject column’s value is DataCardValue42.
As to you, you should try:
'Office365'.SendEmail (emailcolumnvalue, DataCardValue2.Selected.Value,TextInputname.Text)
After these configurations, you’ll navigate to the wring Email page after clicking the button in the Display form Screen. Email will be sent according to the requirements you mentioned after you clicking the button in the writing Email Screen.
Best regards,
Community Support Team _ Phoebe Liu
