APDahlen is correct. Connecting LED strips in parallel is often problematic, even when using all of the same part number and binning. There are several reasons for this, but it primarily comes down to the fact that LEDs are current controlled devices rather than voltage controlled. Their forward voltage will vary as current passes through them in a non-linear manner.
Manufacturing variability from one part to the next can cause variations in the current/foward voltage relationship, and when one adds up several LEDs in a strip, these variations can compound and cause an imbalance in forward voltage for a given current, or stated differently, an imbalance in forward current for a given forward voltage. At a minimum, this will result in uneven brightness between strips. An additional effect is that the higher current experienced by some of the parallel strips relative to others will cause an uneven aging rate between the strips.
Additionally, LEDs have a negative temperature coefficient with respect to temperature versus forward voltage. This means that as an LED heats up, its forward voltage will drop. If one LED strip is slightly warmer than another, then its forward voltage will drop for a given current. This means that it will draw more of the current when strips are connected in parallel, and as it draws more current, it will heat up further, possibly causing a thermal runaway condition and resultant failure of the strip.
Furthermore, if one of the parallel strips fails open, then all of the current that the failed strip had been drawing will then be redirected through the remaining parallel strips, which can potentially overdrive them and cause them to fail as well.
The point is, even though it is sometimes possible to run like strips in parallel, one must make sure they are carefully matched and ensure that they are kept at the same temperature, which is not easy to reliably accomplish.
Because of the issues described above, it is generally recommended that one drive LED strips in series. This eliminates the issue of variable forward voltages and also prevents the failure of a single strip from damaging the remaining strips. If one strip fails open, the series string will quit illuminating, but once the failed strip is replaced, the string will be functional again.
With all this in mind, here are some options to drive three BXEB-L1120Z-50E4000-C-B3 strips in series at 700mA.