Since I'm in charge, I let them know. For boarding I let them know I send updates every 2 or 3 days. I like to ask if they'll have good reception. Usually they'll volunteer what city they're going to. I always send at lunchtime. That way not getting disturbed early morning or late night due to time difference.
The day they drop off I send about 10 within the hour. Then after 2 or 3 days I send about 4- 6 pictures. With those two sends I'm able to discern if I need to send more or if that's sufficient. I honestly don't even say anything with them unless owner initiates conversation.
Personally I'm busy caring for their dog and others (going on walks, training, dog play dates) so it's not usually convenient for me to constantly take pictures. My pics are well lighted with their dog in sharp focus in different situations. I rather send 1 high quality pic than 10 pics of dog's butt while walking. I find it rare that the owner starts a conversation, but if they do then I go into detail. I have repeat clients and I know who's the helicopter parents lol. Sitters always claim that owners want a ton of updates. However I bet you anything if they did less the owner would still say the same thing!
If it's a drop or walk: 1 per service.
I've done pet drop in's for about 10 clients now and sent dozens of photos each day. And all the clients marveled over the pictures and commented about them in their reviews. But the last client who was on vacation reported that my multiple photos froze his phone. Oops. No wi-fi? Lesson learned.
In hindsight, how I would handle is to ask the client if they prefer as many as possible pics or a specific number. I also would not forward the pics all at once. In the future, I will send pics one at a time more slowly in case they are away from a wi-fi connection.
I normally send 2-3 pics every 2-3 hours while boarding or during daycare. It might seem like a lot, but I always assure the owner that there’s no pressure to respond - it’s just that I want them to feel like they’re apart of their dog’s day...Clients/customers have always responded very well 🥰