The same thread can show different results for different members. Check the individual row before telling someone their message arrived.
If a member’s WhatsApp reply period closes or they opt out before their turn, they may become unreachable. An uncertain message isn’t automatically resent because it might already have arrived.
For a voucher you prepared for one person, retry from the existing prepared voucher when offered. That uses the same code and image. If a reward shows Needs checking, contact Hydra before issuing another one.
Messaging
Check delivery to each member
Open a send to see who received it and who needs attention.
After you choose Send, open the item in Messaging. Hydra calls this a thread. It shows the message or voucher and the delivery result for each member. Results update while sending continues.