Q: Mobile Phone Number format in Journey Builder Was wondering if phone number format matters for Marketing Cloud Journey Builder?  I did a test where I put my mobile number and inside the data extension I had data type phone.  My number was just basic numbers - and it seemed to have worked, but I also see numbers that have
(999)9999999 or
+999999999 or 
9999999999 and so on
Does MC still accept numbers with parentheses?  Also does the number have to have an area code for it to work? 

A: Please find the detailed information from this official documentation link.

Data Extensions Data Types in Email Studio

And to answer your question "Does MC still accept numbers with parentheses?".
Below is the answer from the same official documentation.

