I'd write it on the inside of the magicband. Protocol or not. Having a number on you will increase the likelihood of someone just calling you. Simple.
I wrote my number in the band, but also wrote all my information including what hotel we were at on multiple stickies "name tags". I put one in the inside of my child's shirts each day. That way if he got lost he knew this WS in his shirt. I told him to just give to a cast member.
I can tell you from experience the name tag worked best for us. As he would take off the magic band and want us to wear it occasionally, but I would do both. It did come in handy too. My son did get separated in a mess of people in a ride area in MK. He pulled out the tag from his shirt and handed it to a CM who called out my name. She spotted me too though as we had matching shirts. A plus for matching shirts as well in this situation. Though this was a mild example. It was something easy for him to remember and he didn't have to say or remember much.
I agree with the number being a good idea on the MB. I also have used the name tags idea. What I did was print on a bunch of stickers with pictures of our family with an if lost call.........on it. No names just my cell #. We all wore that nametag on our shirts. Yup even me. One of my sons actually lost his somewhere in Animal kingdom and I don't know how it managed to happen, but somewhere in an area of the park we had not been in yet, a CM saw all of us and stopped me and said "Oh there you are. This is yours." The sticker was returned to us. I laughed. I had extras with me so my son had a new one on, but how funny that the CM found us in another area and returned the sticker. Of course I couldn't use it cause the sticky was full of dirt but it just showed me they were paying attention and looking at it.
We also wore matching shirts. I tried to pick unusual colors and the 4 of us had that color on. Even the same style/color shorts. Big time helped keep track of my husband for me. I swear he would disappear on me more than the kids. Still now with the kids young adults, I threaten to wear matching shirts just so I can find DH. I keep telling him to stop walking away from me or I'll leave him there. I swear I spent more time looking for him................ok done. LOL maybe I'll write my cell # inside his MB.....then again maybe not.
I did notice another family when traveling, had a young child and safety pinned on the back of his short one of those badge holders. I assume so he wouldn't take it off. But the part that showed said something to the matter of "if lost" or "emergency info"....I can't remember. But I suppose if the kid was lost, the paper would unfold with the appropriate information.
You shouldn't count on a CM having access to your
MDE account (a random CM may not be trained on MBs AND they may not have an iPad scanner with them to scan it).
MUCH better to write your cell number on the outside of the MB with a Sharpie. It's much more likely that a CM will have access to a cellphone than having access to your MDE account.
Nope wasn't counting on a CM having a scanner either. But I would think if there was a lost child, there would be a ride or store near by. I don't plan to travel with a young one anytime soon, but maybe if I do I would stop and ask at Guest relations what are good ways to help CMs find a parent if a child is lost.
Honestly I don't think any attempts are fool proof or not a good idea. Not to start a rant thread out of this but.....Most important thing is adults remember their kid is their responsibility in the parks and resort areas and to not expect CMs to babysit.

I actually know of a situation......I'll spare you the details.
Creeps are everywhere. Even at Disney.
Did I mention on this thread when I called to book my resort, I asked if my husband had to get there before me was it ok my name was first on the booking? The CM said "sure your husband can check in as long as he is 18".

I suppose the guy didn't know I was over 50 but I still thought that was really funny.
Have a pixie dust day.
